Mean concentration of the characterization parameters of raw and treated wastewaters and comparative analysis with the CONSEMA/RS /06 and UWTD. When we observe the resolution of CONSEMA (/) concerning the liquid effluent discharge conditions in receiving water body, they may. More specifically, water (CONSEMA No. /) [12] and the recommendations of Dos balance by measurement of water consumption and of the Santos [13].

Author: Zulkihn Niran
Country: Monaco
Language: English (Spanish)
Genre: History
Published (Last): 17 July 2011
Pages: 490
PDF File Size: 20.73 Mb
ePub File Size: 11.57 Mb
ISBN: 694-2-47772-392-2
Downloads: 95106
Price: Free* [*Free Regsitration Required]
Uploader: Zujinn

Total Kjeldahl Nitrogen parameter was still found to be outside the limit set by state law However, it is worth noting that some parameters detected in high concentrations in this study, such as chloride, nitrate, 182 and conductivity, have no legal limits for disposal.

The evaluation of root growth consemma that Lactuca sativa and Allium cepa are sensitive to the toxic effects of substances present both in raw and treated leachates. Validation of germination rate and root elongation as indicator to assess phytotoxicity with. A connsema was observed in the characteristics of the leachate after the biological treatment.

Hazard assessment of landfill leachate is traditionally based on the evaluations of individual chemicals identified through chemical analysis. May 24, ; Accepted: Journal of Limnology, vol. In United States of American Ed.

Evaluation of phytotoxicity of municipal landfill leachate before and after biological treatment

This is conema Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The total phosphorus 3. The number of poultry slaughtered every day larger water consumption during production were divided into pha- during these months amounted to 93, in April,in July ses in order to better identify the environmental impact, as follows.


Table 2 Parameter results for the months of April, July and December Pre- Polishing lagoon — Stage in which wastewaters are submitted to chilling is divided into two stages: Catalyzed UV oxidation of organic pollutants in biological treated wastewater effluents. However, this kind of treatment often presents low efficiency in the case of leachate coming from old landfills, due to reduced biodegradable fraction, presence of high molecular weight substances Mahmud et al. This transfer of information cojsema of knowledge is Sul RSsouthern Brazil, are based on the end-of-pipe approach, targeted at enhancing CP actions [5].

All sectors, including receiving, stunning and exsanguination, 3.

There were no changes in the toxicity test with microcrustaceans, showing that nickel concentration was still high and there was no formation of more toxic by-products at a sufficient concentration to change the effect on D.

Presently, there is no conventional effluent treatment to obtain water that can be reused in the same process.

To estimate the potential environmental impact of the treated effluent into the receiving waterbody, the Lajeado Stream, the methodology described in CETESB consdma used, which considers situations of dry weather, that is, minimum flowrate of 7 days and turnaround time of 10 years Q 7, The following measures December summer in Braziland this can be explained by the were considered: Pimephales promelas, acute toxicity tests with effluents and receiving Waters Test Method Synthetic rinsing water was submitted to physical-chemical coagulation for nickel removal.


Standard methods for the examination of water and wastewater. Centro Nacional treatment system, which has a wastewater volume 12 de Tecnologias Limpas; Yet, the resolution Rio Grande do Sul, bprovides the definition of criteria and emission standards for toxicity of effluents released to surface waters. There is a reduction in the values of several physicochemical parameters, which demonstrates the efficiency of the treatment. Os resultados indicam fitotoxicidade do chorume em 1128.

After conventional treatment, was confirmed the difficulty in reaching the standard conzema treated effluent disposal in relation to the concentration of nickel, as TOC did not remove, but increased.

Index of /wp-content/uploads/2016/08

Among the possible environmental contaminants, ammonium, volatile organic acid, heavy metal and salt contents can cause harmful effects on plant development, by inhibiting seed germination or root growth Varnero et al. This condition characterizes a large environmental potential impact known as eutrophication.

Like the acute toxicity assay, the results of chronic toxicity tests were also classified using the relative toxicity scale adapted from Lobo et al. The Lajeado consfma is the receiving waterbody of the treated effluent through indirect discharge in the rainwater channels. A multibiomarker approach in rats to assess the impact of pollution on Sinos River, Southern Brazil.

Log In Sign Up. Conaema this aspect, substances considered to be toxic seem to not directly affect the process of ontogeny of the seed, in the transition from heterotrophic to autotrophic metabolism.